Measuring instrument



FIG. 1 is a perspective view of a measuring instrument showing the first embodiment of my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top elevational view thereof;

FIG. 7 is a bottom elevational view thereof; and,

FIG. 8 is a bottom elevational view of a measuring instrument showing the second embodiment of my new design, the rear, left side, front, right side and top elevational views thereof being the same as FIGS. 2-7 respectively. 

The ornamental design for a measuring instrument, as shown and described. 